Merge pull request #2054 from jlarmstrongiv/patch-1

docs(serverless): fix custom webpack example with commonjs2 from crashing cli

Author: kamilmysliwiec

content/faq/serverless.md

@@ -271,6 +271,7 @@ return {
   ...options,
   externals: [],
   output: {
+    ...options.output,
     libraryTarget: 'commonjs2',
   },
   // ... the rest of the configuration